Straight Shank Counterbores

The Straight Shank Counterbores category offers a comprehensive selection of high-speed counterbores designed for precision boring applications across various industries. Engineered with high-quality materials and advanced manufacturing techniques, these tools ensure optimal performance and durability, making them essential for any machining or fabrication environment.

Within this category, users will find a variety of sizes ranging from compact 1/4" x 3/32" models to larger 1-15/16" x 7/16" options, addressing the diverse needs of projects requiring clean, flat-bottomed holes to accommodate screws or other fasteners. Each counterbore features a straight shank design that facilitates easy installation and compatibility with standard drill chucks, providing versatility and ease of use.

High-speed steel (HSS) construction enhances the cutting efficiency of these tools, allowing for smooth operation and reduced friction. Whether one is working with metals, wood, or plastic, these counterbores can deliver precise and consistent results while minimizing wear.

The catalog includes various models optimized for specific applications, such as those designed for intricate tasks requiring narrow diameters or others suited for heavier-duty performance. The range of options ensures that there is a suitable solution for both professional machine shops and DIY enthusiasts alike.

In summary, the Straight Shank Counterbores category presents a trusted lineup of high-speed counterbores that cater to a wide spectrum of machining needs, delivering reliable and efficient performance. Each tool is meticulously crafted to meet the demands of precision engineering, making it a valuable addition to any toolkit.

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  • 47/64" X1/4"  High Speed Counterbore

    Drill America

    47/64" X1/4" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $35.53
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  • 45/64" X1/4"  High Speed Counterbore

    Drill America

    45/64" X1/4" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $35.53
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  • 43/64" X3/16"  High Speed Counterbore

    Drill America

    43/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $34.67
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  • 41/64" X3/16"  High Speed Counterbore

    Drill America

    41/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $34.67
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  • 3" X1/2"  High Speed Counterbore

    Drill America

    3" X1/2" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $358.80
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  • 39/64" X3/16"  High Speed Counterbore

    Drill America

    39/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $32.47
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  • 37/64" X3/16"  High Speed Counterbore

    Drill America

    37/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $32.47
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  • 35/64" X3/16"  High Speed Counterbore

    Drill America

    35/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $30.98
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  • 33/64" X3/16"  High Speed Counterbore

    Drill America

    33/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $29.78
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  • 31/64" X3/16"  High Speed Counterbore

    Drill America

    31/64" X3/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $26.45
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  • 31/32" X5/16"  High Speed Counterbore

    Drill America

    31/32" X5/16" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $45.37
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  • 3/8" X5/32"  High Speed Counterbore

    Drill America

    3/8" X5/32" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $22.07
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  • 3/4" X1/4"  High Speed Counterbore

    Drill America

    3/4" X1/4" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $33.65
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  • 3/16" X3/32"  High Speed Counterbore

    Drill America

    3/16" X3/32" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $19.52
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  • 2" X1/2"  High Speed Counterbore

    Drill America

    2" X1/2" High Speed Counterbore

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $161.08
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